defending herself in the aftermath of the benghazi attacks. senator john mccain has criticized her for participating in what he describes as a over cover-up. >> this president has and administration have been guilty of cover-up or incompetence. >>> the focus is on rice because she is believed to be the president's first choice to replace secretary of state hillary clinton. some republican senators have vowed to block her nomination. she spoke publicly about the controversy yesterday. >> when discussing the attacks against our facilities in benghazi, i relied solely and squarely on the information provided to me by the intelligence community. i made clear that the information was preliminary and that our investigations would give us the definitive answers. everyone, particularly the intelligence community, has worked in good faith to provide the best assessment based on the information available. >> she also says some of the statements that senator mccain said about her are unfounded. >>> they call him karnow, lawrence karnow. and he is at a very special place today. >> yes, he is.